When to conceive after miscarriage?

I I found I was pregnant on July 7th and 2 days later I went to my dr. For bleeding and i miscarried. I was devastated, of course. When is it safe to try again? And when will my period come? I know all women are different, I would just like to know other stories. 
Thank you. Any info will be appreciated, this is my first miscarriage.